baber/WOPTO huggingface dataset:
Patent GB-1214753-A (GB)
Title: A photographic camera with a timing device controlled electronically in dependence upon light conditions
IPC: G03B9/58
Filed: 1969-07-01
Abstract: 1,214,753. Photographic cameras. PRONTORWERK ALFRED GAUTHIER G. m. b. H. July 1, 1969 [July 25, 1968], No.33172/69. Heading G2A. A camera in which exposure time is controlled by a photo-resistor P, comprises an over-ride button 5 for poor light conditions. To facilitate location of button 5 is such conditions, the button is made of transparent or translucent material and is lit by a lamp L which is energized only while the shutter is open. The button 5 may be hollow and enclose the lamp Fig.2 (not shown), or may be solid and lit by the lamp via a reflector 7, Fig. 3 (not shown). Alternatively the lamp itself may constitute the button. On pressing the shutter release, a main switch S 1  is closed energizing a magnet M which opens the shutter and moves a switch S 2  into parallel with S 1  to allow the photographer to release the latter. When button 5 is pressed, photo-resistor P is short circuited, a capacitor C rapidly charges and an electronic switch or amplifier 3 de-energizes magnet M which closes the shutter and opens switch S 2  extinguishing lamp L.
Patent GB-604888-A (GB)
Title: Improvements in and relating to cycle and motor cycle pump clips and holders
IPC: B62J11/02
Filed: 1945-12-07
Abstract: 604,888. Attaching inflators to cycles. PEYMAN, A. W. D. Dec. 7, 1945, No. 33208. [Class 136 (i)] [Also in Group XXV] Attachment means for a pump or other article, comprises a bracket 1 clamped to a cycle frame and carrying a lock and a support member 16 adapted to engage the pump and retained in position by the lock, and means for preventing the loosening of the clamping means 4 when the support member 16 is in its pump engaging position. The lock comprises three tumblers 21, 22, 23 slidably supported on two rivets 12 and 13. When the supporting member or bolt is in its locked position a leaf spring 31 urges the tumblers into a recess 24 in the bolt 16. The device is unlocked with a key which forces back the tumblers against the action of the spring 31. A coiled wire spring 32 raises the bolt 16 to its disengaged position. The upper end 19 of the bolt is bent over so that when the bolt is in its engaged position this end, which is partly cut away as shown at 20, comes in front of and shields the head of the screw 4. The key cannot be removed when the device is unlocked.
Patent GB-878650-A (GB)
Title: Halogenated 5,6-dimethylene-bicyclo-(2,2,1)-heptenes-(2) and their production
Inventor: FUST KLAUS JUERGEN
IPC: C07C17/25
Filed: 1959-10-01
Abstract: The invention comprises compounds of the formula <FORM:0878650/IV (b)/1> wherein X represents hydrogen or chlorine acid at least four of the X substituents being chlorine and a process for the preparation thereof wherein a compound of the formula <FORM:0878650/IV (b)/2> wherein X has the meaning given above and Y represents chlorine, bromine or iodine is treated with alkali so that hydrogen halide is split off.  Solvents such as methanol, ethanol, propanol and butanol may be employed.  Alkalies specified include alcoholic solutions of caustic soda or potash or the corresponding alkoxides.  Aqueous or aqueous alcoholic alkalies may also be used. Stabilisers may be added to the reaction mixture, e.g. phenothiazine, hydroquinone or paratertiary-butylcatechol.  The preparation of 5.6-dimethylene-1,2,3,4,7,7- hexachlorobicyclo-(2,2,1) -heptene-(2) from 5,6-bis-chloromethyl-1,2,3,4,7,7-hexachlorobicyclo-(2,2,1) - heptene-(2) is described in examples.
Patent GB-346332-A (GB)
Title: Improvements in or relating to shut-off valves
IPC: F16K1/06
Filed: 1929-11-01
Abstract: 346,332. Valve accessories. SCHMIDT, K., 40, Bayreuther Strasse, Dresden, Germany. Nov. 1, 1929, No. 33324. [Class 135.] Casings.-In order to minimize losses of fluid in passing through valves and to reduce their size and weight, the valve casings are formed with aligned inlet and outlet passages x, y merging into a main bend which connects said two passages, the valve seat b being arranged in the middle part a of the main bend where maximum cavitation or contraction of the fluid flow occurs. The valve seat is arranged at right-angles to the direction of flow and the valve spindle c is at right-angles to the seat, as shown.
Patent GB-348123-A (GB)
Title: Improvements in or relating to projection apparatus
IPC: G02B1/00
Filed: 1929-11-01
Abstract: 348,123. Optical-projection apparatus; lenses. TRANS-LUX DAYLIGHT PICTURE SCREEN CORPORATION, 247, Park Avenue, New York, U.S.A.-(Assignees of Bowen, L. W.; Larchmont, New York, U.S.A.) Nov. 1, 1929, No. 33341. Convention date, Nov. 1, 1928. [Class 97 (i).] Optical-projection apparatus for kinematograph pictures is arranged relatively close to the rear of the screen instead of at a great distance in front of it, and for this purpose it is provided with a lens system comprising positive and negative components arranged with the positive component nearer to the picture aperture. The equivalent focal length of the complete lens system is not greater than twice the length of the longest side of the picture. The film 4, Fig. 1, is illuminated by a source of light 1 and a reflector 2 and the image is projected on to a screen 5 by means of the lens system 6 .. 9, the positive component 6, 7 being nearer the picture aperture, and the negative component 8, 9 being spaced from the positive component at a distance greater than the focal length of the positive component. Complete numerical data are given in the Specification of the construction of projection lens shown in Fig. 2, together with a discussion of the principles involved in the construction. To facilitate the rapid exhibition of successive films two projectors, Fig. 3, are used arranged with their optical axes parallel to the screen 5. In the example shown only the positive components 6, 7 are included in the projector and the beams are reflected from two reflectors 21, 22 movable longitudinally along their line of intersection so that light may be reflected from either projector. The negative component 8, 9 is arranged in the reflected beam. In a further example the whole of the optical projection system is included in the projectors.
Patent GB-1471455-A (GB)
Title: 10-2-dimethylaminoethyl-10,11-dihydro-2-fluoro-5-methylene- 5h-dibenzo-a,d-cycloheptene
IPC: C07D311/76
Filed: 1974-07-29
Abstract: 1471455 10 - (2 - Dimethylaminoethyl) - 10, 11 - dihydro - 2 - fluoro - 5 - methylene - 5H - dibenzo[a,d]cycloheptene SANDOZ Ltd 29 July 1974 [30 July 1973] 33343/74 Addition to 1419681 Heading C2C The invention comprises 10-(2-dimethylaminoethyl) - 10,11 - dihydro - 2 - fluoro - 5- methylene - 5H - dibenzo[a,d]cycloheptene of Formula I and acid addition salts thereof. The compound may be prepared by reacting o-methyl-N- methyl - p - fluoro - benzamide with 3 - dimethylamino-propiophenone to produce 4- fluoro - 2 - # - [2 - dimethylaminoethyl] - #- hydroxy - phenethyl) - N - methylbenzamide; cyclizing the latter to give 6-fluoro-3-[2-dimethylaminoethyl] - 3,4 - dihydro - (3 - phenyl)- isocoumarin, followed by hydrogenation to give 4 - fluoro - 2 - (# - [2 - dimethylaminoethyl]- phenethyl)-benzoic acid hydrochloride, and cyclization to give 10-(2-dimethylaminoethyl)- 10,11 - dihydro - 2 - fluoro - 5H - dibenzo[a,d]- cyclohepten-5-one hydrochloride. The latter may then be converted to the maleate salt, followed by reaction with methylene chloride to produce the compound of Formula I. Alternatively 10 - (2 - dimethylaminoethyl) - 10,11- dihydro - 2 - fluoro - 5H - dibenzo[a,d] - cyclohepten-5-one may be converted to 10-(2-dimethylaminoethyl) - 10,11 - dihydro - 5 - methyl- 2 - fluoro - 5H - dibenzo[a,d] - cyclohepten - 5- ol by reaction with methyl lithium or methyl magnesium chloride followed by dehydration with sulphuric acid to produce the compound of Formula I.
Patent GB-634297-A (GB)
Title: Improvements in driving mechanisms for reciprocating work carrying tables of surface grinders and similar machines
IPC: B24B47/04
Filed: 1945-12-10
Abstract: 634,297. Traverse mechanism for grinding- machines. ROBACZYNSKI, L. Dec. 10, 1945, No. 33353. [Class 60] [Also in Group XXIV] A driving mechanism for a reciprocating  work-carrying table of a surface grinder or similar machine, adapted to be selectively manually operated and power operated, comprises a rotatable shaft, a driving gear fast on said shaft, a manually operable element, means to engage said element with the shaft to rotate the shaft upon the manual operation of said element, said means being disengaged when said element is in an idle position, co-operative clutch parts, a power-driven reversing gear, a lost-motion connection between said reversing gear and the first of said clutch parts at one side of the gear, a friction slip device interposed between said reversing gear and said first clutch part at the other side of the gear, the second of said clutch parts being connected with said shaft and capable of being moved axially thereof to transmit rotational movement thereto when engaged with said first clutch part and when said reversing gear is in operation. The workcarrying table 17 of a surface-grinding machine has tracks 18 moving in trackways 16 on a saddle 14 which has tracks 15 moving in trackways 13 on the machine frame 10; cross movement of the saddle 14 is effected intermittently by any known means. For effecting reciprocation of the table 17 it is provided with a rack 47 engaged by a gear 48, carried by the saddle 14, which meshes with a cylindrical gear 44 having at one end a gear 45 meshing with a gear 46 secured to a shaft 55. The shaft 55 may be rotated by means of a hand crank 61 having clutch teeth 67 which, by axial movement of the hand crank, are made to engage clutch teeth 68 on the shaft. Power actuation is by means of electric motor 20 through belt drive 22, toothed gearing 26, 27, a reversing mechanism 34, automatically operated in any known manner to effect reversals of the table, and a bevel gear 41 meshing with a bevel gear 100 mounted on the hubs 75 of a clutch member 71 mounted on the shaft 55 for rotation relative thereto. A second clutch member 80 is keyed to sleeve 72 which is keyed to shaft 55; the sleeve 72 is retained on the shaft 55 by nut 74 and serves to locate the clutch part 71 axially. The clutch part 80 is movable axially on the shaft 55 by means of a pin 90 eccentrically positioned in a disc 88 rotated by a handle 91 having a spring-pressed detent to locate it in either of its two operative positions. There is a lost-motion connection between the bevel gear 100 and clutch part 71 comprising a tongue 106 on the latter projecting into a slot 103 in a flange 102 on the hub of the former; additionally there is a friction drive between the gear 100 and part 71 by means of a friction plate 110 and spring washer 111, the pressure of which can be adjusted by nuts 112, 113. The object of the construction is to reduce shock at reversals of the table. U.S.A. Specification 2,010,366 is referred to.
Patent GB-506804-A (GB)
Title: Improvements relating to agricultural distributors for manure, seed and like powdered or granular material
IPC: A01C15/16
Filed: 1937-12-02
Abstract: 506,804. Distributers for manures, seeds, &c. TWOSE, E. V. Dec. 2, 1937, No. 33364. [Class 6 (i)] A hopper 1 extends transversely across the machine and is provided with a slot 4 and discharge roller 5 below which is a board 11 pivoted at 13. The board is given a shaking movement by a rod 15 which is adjust. ably connected to a pawl 17. The pawl 17 rides over the teeth of a ratchet wheel 14 which is rotated continuously as the machine travels. The board 11 may be given a vibrating movement in its own plane in addition to the movement about the pivot 13 and it may be made in two parts each provided with its own shaking means. The upper wall of the slot 4 is formed by an adjustable plate 6 and the size of the slot is controlled by a cylindrical member 20 pivoted at 21 and provided with an adjusting handle 22. Prongs 8, 9 which reciprocate in opposite directions may be provided in the hopper to agitate the material as described in Specification 437,670.
Patent GB-401498-A (GB)
Title: Improved vibrating centrifugal mould
IPC: B28B21/34
Filed: 1932-11-25
Abstract: 401,498. Percussive tools. SUPERBETON AKT.-GES., 1, Sonnenquai, Zurich, Switzerland. Nov. 25, 1932, No. 33385. Convention date, Dec. 16, 1931. [Class 124.] Centrifugal moulds have fixed thereto pneumatic vibrators 8, 9 of the kind comprising a hammer piston 14 operated by air pressure and causing vibration by its impacts at the two ends of the containing cylinder C. The mould may comprise a cylinder 1 placed between two rotating supports 2, the compressed air for actuating the vibrators 8, 9 entering through a valve-controlled fixed conduit 10, a conduit 5 passing through and rotating with the hollow shaft 4 and conduits 6, 7. In operation, assuming the hammer piston 14 of the vibrator 8 occupies the position shown in Fig. 2, air passes from the conduit 6 through the lefthand groove 15 and an inner opening 17 of the piston 14 into the part 18 on the left of the cylinder C whereby the piston is displaced towards the right ; in that position a reverse action takes place which displaces the piston towards the left, the air in the cylinder escaping gradually through one or other of the openings 16. Means set in motion by the centrifugal force may be provided to overcome the dead centre of the vibrator when the vibrator is being set in action. Thus the conduit 6 may be provided with a three-way cock 19, one passage conveying air for the normal operation of the vibrator and another passage 20 introducing air directly into one of the extremities of the cylinder C to push the piston towards the other extremity, i.e. away from the dead centre. The cock 19 is actuated by a weighted lever 22, the lever being placed when the mould is set in motion in the position shown in Fig. 2, in which position the air passes through the conduit 20 ; when the mould reaches a certain speed of rotation the centrifugal force acts on the weighted lever displacing the lever in the direction of the arrow to a position at rightangles to the original position, so that the air can pass for the normal operation of the piston. The speed at which the mould is set in vibration may be regulated by the device shown in Fig. 5, in which device the lever 22 is retained by a member 25 subjected to the action of an adjustable spring 26. Alternative means for overcoming the dead centre of the vibrator is shown in Fig. 6, and comprises a spring-pressed rod 29 which is initially locked by a catch 34 on a weighted lever 33 in the position shown to maintain the piston 14 away from the dead centre ; when the mould reaches a certain speed of rotation the weighted lever is displaced in the direction of the arrow thereby releasing the rod 29 and allowing the vibrator to function normally.
Patent GB-1276316-A (GB)
Title: A gun for driving in nails
Inventor: DINO MAZZER
IPC: B25C1/00
Filed: 1969-07-02
Abstract: 1276316 Nail driving guns D MAZZER 2 July 1969 [4 July 1968] 33448/69 Heading B4C  A pneumatically operated gun, for driving headless nails, comprises a striker member reciprocable in a guide channel, and means for feeding nails S into the channel. The channel, defined by members 5, 6 secured together, comprises a groove 18 of substantially half the crosssectional area of a nail and longitudinally extending grooves 17, 19. The striker member is of substantially the same cross-sectional configuration as the channel, and portion 25 of the striker member is of a depth substantially equal to half the diameter of the nail.
Patent GB-385720-A (GB)
Title: Improvements in vacuum pumps
IPC: F04B39/12
Filed: 1931-12-03
Abstract: 385,720. Separating oil from air. WILLIAMS, H. G., Southlands, Tuffley Avenue, JAMES, R. R., Morwenna, Stroud Road, both in Gloucester, and LOVE, T. E., White House, Cromwell Road, Cheltenham, Gloucestershire. Dec. 3, 1931, No. 33483. [Class 12 (iii).] The air delivered by a vacuum pump, and carrying oil, passes into a separator 3 having a restricted air outlet 8 which allows the pressure to rise when the pump vacuum falls, and to open a valve 6 to convey oil to the sump from which it passes to the pump cylinder. The sump has a breather 11. The separator comprises a plate 5 perforated at the lower part. A rotary vane pump may be used in place of the piston pump shown.
Patent GB-631790-A (GB)
Title: Improvements in or relating to infra-red radiant heating apparatus
IPC: F26B17/26
Filed: 1947-12-18
Abstract: 631,790. Electric resistance heaters and driers. REAVELL, J. A. Dec. 18, 1947, No. 33503. [Class 39(iii)] [Also in Group XIII] Apparatus for the drying or heating of discrete materials, e.g. wood sawdust, cereals and the like, comprises a table or conveyor of the vibratory type on to which is directed infra-red heat from electric bar type heaters. The conveyor is an elongated trough 1 vibrated hydraulically or by electrical units 2 and is heated substantially evenly over its top surface by heater bars 21 in ellipsoidal or parabolic reflectors. Forced draught supply or air evacuation may be used and a locking device prevents side reflectors 12 being opened while the heaters are in use.
Patent GB-1413725-A (GB)
Title: Water-insoluble random copolymer
IPC: B01J47/12
Filed: 1973-07-13
Abstract: 1413725 Cation-exchangeable polymers MITSUI PETROCHEMICAL INDUSTRIES Ltd 13 July 1973 [14 July 1972] 33545/73 Heading C3P Cation-exchangeable structures consisting of water-insoluble random copolymers containing (A) C 2-6  α-olefin units and (B) 0À1 to 5 meq. per gram of units of formula where R<SP>2</SP> is hydrogen or methyl, l is 0 or 5 to 8, m is 3 or 4 and M is hydrogen or alkali metal, may be prepared by copolymerizing the olefins with sulphopropyl or sulphobutyl esters of acrylic, methacrylic or #-unsaturated carboxylic acids or alkali metal salts thereof, or by copolymerizing the olefins and acids and reacting the resulting copolymers with propane sultone or butane sultone, with or without an alkali metal hydroxide. The copolymers may contain units of unreacted acids or salts thereof, and optionally minor amounts of units of other monomers, e.g. acrylic, methacrylic and undecylenic acid esters and styrene. The products may be melt shaped, or spun or cast from solutions, to form filaments and films, which may be reinforced by vinylidene chloride resin nets, to provide ion-exchange materials. Examples describe the preparation of ion-exchange membranes and fibres from materials prepared by reacting propane sultone with (1) ethylene/ acrylic acid copolymer, (2 and 4) sodium salt of propylene/undecylenic acid copolymer, (3) ethylene/sodium methacrylate copolymer and (5) sodium salt of ethylene/acrylic acid copolymer.
Patent GB-627265-A (GB)
Title: Improvements in or relating to highly stable vinyl polymer latices and method of preparing same
IPC: C08F259/04
Filed: 1946-11-12
Abstract: A highly stable latex is prepared by polymerizing in aqueous emulsion a predetermined amount of vinyl chloride and/or vinylidene chloride in the presence of a predetermined proportion of a previously prepared latex made by the aqueous emulsion polymerization of a monomeric material comprising predominantly vinyl chloride and/or vinylidene chloride and containing a known number of polymer particles of known dimensions, whereby the average diameter of the polymer particles is increased to between 500 and 20,000, preferably 500 and 3000 Angstrom units.  The monomeric materials may include minor amounts of other copolymerizable compounds such as vinyl acetate, propionate, butyrate and benzoate, methyl acrylate, methacrylate and ethacrylate, ethyl methacrylate, phenyl acrylate, ethylene diacrylate, acrylonitrile, styrene; maleic acid or anhydride and esters of maleic acid and of chloromaleic acid.  The amount of seed latex employed is usually between 0.05 and 50 per cent of the total finished latex.  Polymerization may be batch or continuous, using the usual dispersing agents and peroxy catalysts and, if desired, buffers.  Excess dispersing agent, producing new particles of small size, is avoided.  A latex produced by the above process may be used as a seed latex in a subsequent polymerization, and the polymer present in the seed need not be identical with that present in the final latex, although within the above class.
Patent GB-1472161-A (GB)
Title: Earth-moving bowl-type scraper
IPC: E02F3/65
Filed: 1975-08-13
Abstract: 1472161 Earth-moving; bowl type scrapers CATERPILLAR TRACTOR CO 13 Aug 1975 [19 Dec 1974] 33752/75 Heading E1F The periphery of the helical blade 26 of a rotatable, upright auger 22 mounted in a scraper bowl to the rear of the scraper edge thereof tapers downwardly towards the floor of the bowl for at least one pitch P of the blade at the lowermost end thereof. The taper of such a blade may be limited to a single pitch at the lowermost end of the blade or may extend throughout the entire length thereof and may be at an angle a of 1‹ to 10‹ to the longitudinal axis X of the blade. The upper end of such an auger may be rotatably mounted on an upper portion of the bowl whilst the lower end of the auger may be rotatably mounted on the floor of the bowl. Slinger means may be provided on the upper end of the blade for discharging material radially outwardly therefrom upon rotation of the auger. Such slinger means can be of the form as specified in the referred to Specification 1472162, which form involves a member 27 located on the upper end of the blade to extend radially inwardly towards the longitudinal axis X of the blade and upwardly relative to the blade. The radially inner end of the member can be offset relative to the longitudinal axis of the auger. The member may be a separate integer securable to the blade or may be integrally formed with the blade. U.S.A. Specifications 3857190 and 3863367 are referred to.
Patent GB-463471-A (GB)
Title: Improvements in or relating to bag filters for air and gases
IPC: B01D46/02
Filed: 1936-12-09
Abstract: 463,471. Filtering gases. MASCHINENFABRIK BETH AKT.-GES. Dec. 9, 1936, No. 33757. Convention date, Dec. 10, 1935. [Class 8 (ii)] Between two compartments of a multiple bag filtering plant a preliminary coarse dust separator is located having an upper air inlet h, a deflector i directing dust to the bottom of the separator whence it may be removed, and an air outlet at the rear b of the filter where it distributes the partly cleaned air to the filter compartments. Specification 314,297, [Class 8 (ii)], is referred to.
Patent GB-1040210-A (GB)
Title: Shoe machine
IPC: A43D21/12
Filed: 1965-02-25
Abstract: 1,040,210. Lasting machines. J. S. KAMBORIAN. Feb. 25, 1965 [March 20, 1964], No. 33776/65. Divided out of 1,040,222. Heading A3B. The subject matter of this Specification is identical with that described in Specification 1,040,222 but the claims differ.